DE400923C - Process for uninterrupted rapid crystallization and drying - Google Patents
Process for uninterrupted rapid crystallization and dryingInfo
- Publication number
- DE400923C DE400923C DEW62289D DEW0062289D DE400923C DE 400923 C DE400923 C DE 400923C DE W62289 D DEW62289 D DE W62289D DE W0062289 D DEW0062289 D DE W0062289D DE 400923 C DE400923 C DE 400923C
- Authority
- DE
- Germany
- Prior art keywords
- tower
- crystals
- finely
- melted
- finely distributed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims description 11
- 238000002425 crystallisation Methods 0.000 title claims description 6
- 230000008025 crystallization Effects 0.000 title claims description 6
- 238000001035 drying Methods 0.000 title description 5
- 239000013078 crystal Substances 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 239000002360 explosive Substances 0.000 claims description 4
- 239000003595 mist Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims 1
- 239000000428 dust Substances 0.000 description 6
- SPSSULHKWOKEEL-UHFFFAOYSA-N 2,4,6-trinitrotoluene Chemical compound CC1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O SPSSULHKWOKEEL-UHFFFAOYSA-N 0.000 description 5
- 239000000015 trinitrotoluene Substances 0.000 description 5
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000012452 mother liquor Substances 0.000 description 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 229940072033 potash Drugs 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 235000015320 potassium carbonate Nutrition 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/16—Evaporating by spraying
- B01D1/18—Evaporating by spraying to obtain dry solids
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING OR TREATMENT THEREOF
- A23C1/00—Concentration, evaporation or drying
- A23C1/04—Concentration, evaporation or drying by spraying into a gas stream
- A23C1/045—Concentration, evaporation or drying by spraying into a gas stream by simultaneously or separately spraying of two different liquid products other than water or steam; by separate addition of additives other than milk products or lactose in the spray-dryer
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfallren zum ununterbrochenen schnellen Auskristallisieren und Trocknen.Decay for uninterrupted rapid crystallization and drying.
Zusatz zum Patent 336612. Addendum to patent 336612.
Das Hauptpatent betrifft ein Verfahren zum t ununterbrochenen schnellen Trocknen dder Eindampfen fein zerstäubter- Flüssigkeiten unter Mitwirkung fein verteilter fester Körper und gegebenenfalls unter gleichzeitiger Durchführung chemischer Umsetzungen, dadurch gekennzeichnet, daß man im oberen Teil eines Turmes die einzutrocknende Flüssigkeit fein verteilt und in den so gebildeten Flüssigkeitsnebel fein verteilte feste Stoffe mittels Saug-oder Preßluft oder mittels mechanischer Mittel einführt und den in dem Turm herunterfallenden, angefeuchteten Körperteilchen Saug- oder Preßluft entgegenführt, so daß die Masse unten trocken und nicht mehr- zusammenbackend anlangt. Nach vorliegender Erfindung kann man dies Verfahren auch so durchführen. das hierbei das Kristalli-@sieren einer einen gelösten Iörper enthaltenden oder einer unterkühlten oder überschmolzenen Flüssigkeit, dann also ohne Eindampfen, in den Vordergrund tritt, insbesondere zu dem Zwecke, solche sonst nur schwer kristallisierende Flüssigkeiten mit Hilfe neutralen Staubes in Kristallform zu brigen, wobei dann die enzelnen Staubteilchen keine chemischen Umsetzungen erfahren oder vermitteln: Natürlich wird man den Staub aus cinem Stofie wählen. der der spateren Verwendung der betreffenden Kristalle förderlich oder wenigstens nicht hinderlich ist. Insbesondere sit das Verfahren in dieser Form so ausführbar, daß der eingeblasene Stat und die sich auf ihn niederschlagende Fli sigkeit aus dem gleichen Stoffe bestehe so daß unten eine einheitliche kristallinisc] Nasse arkommt. The main patent relates to a method for t uninterrupted rapid Drying the evaporation of finely atomized liquids with the help of finely divided liquids solid body and possibly with simultaneous implementation of chemical reactions, characterized in that in the upper part of a tower the to be dried Liquid finely divided and finely distributed in the liquid mist thus formed introduces solid substances by means of suction or compressed air or by mechanical means and the moist body particles falling down in the tower, suction or Compressed air counteracts, so that the mass is dry at the bottom and no longer caking arrives. According to the present invention, this method can also be carried out in this way. that in this case the crystallization of a dissolved body containing or a supercooled or melted liquid, then without evaporation, comes to the fore, especially for the purpose of otherwise difficult to crystallize To remedy liquids in crystal form with the help of neutral dust, whereby then the individual dust particles do not undergo or mediate chemical reactions: Of course you will choose the dust from a fabric. that of later use the crystals in question is beneficial or at least not hindering. In particular sit the method in this form so executable that the blown Stat and the The liquid that precipitates on it consists of the same substance so that at the bottom a uniform crystalline wet surface comes up.
Es hat. sich weiter herausgestellt. daß d. It has. turned out further. that d.
Verfahren in dieser Form insbesondere z@ Herstellung von Sprengstoilgentischen od -kristallen, mit Vorteil annendbar ist, jedo@ ohne daß es auf diesem Gebiete seine alleinig Anwendung finden würde.Process in this form in particular for the production of explosive agent tables od crystals, can be used with advantage, but without it being in this area its sole application would apply.
Beispiel 1. Example 1.
Im oberen Teile eines hölzernen Turms zerstäubt man mittels Düsen eine konzentriert Lösung von chlorsaurem Kali und ferne mittels beliebiger mechanischer Hilfsmitte fein gepulverte Holzkohle, während man vo unten Preßluft einbläst. Die Salzlösung set; sich an die einzelnen Holzkohlenstäubchen ar ulid es entstehen Kristalle von chlorsauren Kali mit einem Kohlenkern, die sich unte@ ansammeln. Bei richtiger Wahl de Mischungsverhältnisses kann man so cin@ ohne weiteres als Sprengstoff benutzbar@ Mischung von chlorsaurem Kali und Kohl@ herstellen. Nozzles are used to atomize in the upper part of a wooden tower a concentrated solution of potassium chloride and distant by means of any mechanical Auxiliary center finely powdered charcoal, while compressed air is blown in from below. the Saline set; at the individual charcoal dust ar ulid it creates crystals of chlorate of potash with a coal core, which accumulate under @. With correct The choice of the mixing ratio can be used as an explosive without further ado @ Prepare a mixture of chlorate of potash and cabbage @.
I3eispiel Im oberen Teil eines hölzernen Turmes zerstaubt man geschmozlenes Trinitrotoluo bei etwa 95° C und bläst oder saugt gliech zeitig mittels Luft geringe Nlengen rein gepulverten kristallisierten Trinitrotoluols cin. wahrend dem herabfallenden Gemisch ein külllcnd wirkender Luftstrom von unten entgegenzieht. Das geschmozlene Trinitrotoluol kristallisiert hierbei ebenfalls. und es setzen sich unten auf Lufttemperatur abgekühlte feinc Kristalle ab, die nur aus Trinitrotoluol bestehen und die insbesondere nicht zum Zusammenbacken neigen, wogegen ohne Verwendung von schon fertigem Kristallstaub hergestellte Trinitrotoluolkristalle auch bei großen Turmböhen immer noch zum Zusammenbacken neigen. I3example In the upper part of a wooden tower, melted food is atomized Trinitrotoluo at around 95 ° C and blows or sucks straight away in time Small amounts of pure powdered trinitrotoluene crystallized by means of air. while the falling mixture is approached by a cooling air stream from below. The melted trinitrotoluene also crystallizes here. and put it At the bottom, fine crystals, cooled to air temperature, which only consist of trinitrotoluene exist and in particular do not tend to stick together, whereas without use Trinitrotoluene crystals made from ready-made crystal dust even with large ones Tower heights still tend to stick together.
Auf ähnliche Weise kann man z. B. Kalium-oder Ammoniumnitrat in Kristallen mit einem Kern aus Kohle oder Schwefel herstellen oder jeden beliebigen andercn überschmolzenen Stoff als Trinitrotoluol in Kristallform bringen, und zwar ohne daß man die Stoffe irgendwie schlagen oder mahlen müßte;denn auch die als Kern dienenden feinen Kristalle werden nicht durch mechanische ZErkleinerung größerer Kristalle hergestellt. sonder den nach dem Verfahren selber erzeugten Kristallen entnommen. Auch ist zu bemerken, daß nach vorliegendem Verfahren das kostspielige Kristallisieren der in Betracht kommenden Stoffe aus Lösungsmitteln, insbensondere auch aus Alkohol, Benzol o.dgl., vermieden wird Es sei schließlich noch bemerkt. daß es bereits voprgeschlagen ist, Kristallösungen durch Reilweises Zerstäuben eines Teiles der Lösung abzukühlen und in Bewegung zu halten. Beim Zerstäuben wird durch tlie lebhafte Verdunstung die Zérstäubungsflüssigkeit abgekühlt. Hierbei wird man unter besondders günstigen Verhältnissen bei einigen Salzen auch in Nebelteilchen eingebettete Kriställchen erzeugen können. Diese fallen wieder in die Kristallösung zurück und halten diese in Bewegung, wodurch man ein Haufwerk ron kleinen Kristallen erzeugen kann. Diese Kristalle sind jedoch nicht trocken. Sie müssen erst von der Mutterlauge abgeschleudert werden, worauf man sie verteilt und in geeigneter Weise trocknet. bei vorliegendem Verfahren werden jedoch unmittelbar verpackungsfähige, trockne, nicht mehr zusammenbackende feine Kristalle erhalten. wobei ein Entfernen der Mutterluage und ein nachträgliches Trocknen nicht mehr erforderlich sind. Würde mnn hierbei nur in cinem Turm zerstäuben, so würde man am Boden des Turmes bei den für die Praxis in bEtracht kommenden Turmhöhen cin zusammenbackendes Gemisch von kristawllen und Mutterlauge erhalten. Durch das Einstauben fester Kriställchen in den Flüssigkeitsnebel werden indessen die kleinen Nebelteilchen geimpft, erstarren ebenfalls und überziehen die Kristallchen mit einer Schicht, gegebenefalls noch vorhandener Mutterlauge, indem sie hierbei eine shr große Obertläche bilden. Auf den Boden des Turmes der hierbei nicht besonders hoch zu sein braucht. fällt alsdann das trockene Kristallmehl herab und backt nicht mehr zusammen. Bekannt ist ferner, da@ man bei genügend hohen Türmen und bei geeigneter gekühlter oder erwärmter Luft durch Zerstäuben von Salziösungen unmittelbar Kristalle erhält. Nach vorliegendem VErfahren handelt es sidi jedoch darum. durch Einblasen fester Kristalle aus dem gleichen Nlaterial oder durch Einführung anderer zweckentsprechender Staub teilchen den firistallisations- und Trockenvorgang so zu verbessern und zu vervolsltändigen. daß man selbst bei niedrigen Turmhöhen in wenigen Sekunden ein festes, nicht mehr zusammenbackendes Kristallmehl erhält. In a similar way one can e.g. B. Potassium or ammonium nitrate in crystals with a core of coal or sulfur, or any other Bring melted substance into crystal form as trinitrotoluene, without that the substances had to be beaten or ground somehow, because also those that serve as the core Fine crystals are not made by mechanical shredding of larger crystals manufactured. specially taken from the crystals produced by the process itself. It should also be noted that, according to the present process, the costly crystallization the substances in question from solvents, in particular also from alcohol, Benzene or the like is avoided. Finally, it should be noted. that it has already been proposed is to cool crystal solutions by partially atomizing part of the solution and keep moving. When atomizing, there is vigorous evaporation through tlie the atomizing liquid cooled. Here one is under particularly favorable In the case of some salts, there are also small crystals embedded in fog particles can generate. These fall back into the crystal solution and hold it in motion, which creates a pile of tiny crystals. These However, crystals are not dry. They first have to be spun off by the mother liquor on which they are spread and dried in a suitable manner. with the present However, processes are immediately packable, dry and no longer caking fine crystals obtained. with a removal of the mother udgeon and a subsequent one Drying is no longer required. If only one tower were to be sprayed, this would be the case at the bottom of the tower at the tower heights that come into consideration in practice A caking mixture of crystals and mother liquor was obtained. By the Dusting of solid crystals in the liquid mist, meanwhile, are the small ones When mist particles are inoculated, they also solidify and coat the crystals with a Layer, possibly still present mother liquor, by doing a shr form large surface. On the floor of the tower, this is not particularly high needs to be. The dry crystal flour then falls down and no longer bakes together. It is also known that @ one with sufficiently high towers and with suitable ones cooled or heated air by atomizing saline solutions immediately crystals receives. According to the present procedure, however, this is what it is all about. by blowing in solid crystals from the same material or by introducing other suitable ones Dust particles improve the crystallization and drying process complete. that even with low tower heights you can enter in a few seconds solid, no longer caking crystal flour is obtained.
Claims (2)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1919336612D DE336612C (en) | 1922-10-15 | 1919-11-26 | Process for continuous rapid drying or evaporation |
DEW62289D DE400923C (en) | 1922-10-15 | 1922-10-15 | Process for uninterrupted rapid crystallization and drying |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW62289D DE400923C (en) | 1922-10-15 | 1922-10-15 | Process for uninterrupted rapid crystallization and drying |
Publications (1)
Publication Number | Publication Date |
---|---|
DE400923C true DE400923C (en) | 1924-08-20 |
Family
ID=7606532
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1919336612D Expired DE336612C (en) | 1922-10-15 | 1919-11-26 | Process for continuous rapid drying or evaporation |
DEW62289D Expired DE400923C (en) | 1922-10-15 | 1922-10-15 | Process for uninterrupted rapid crystallization and drying |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1919336612D Expired DE336612C (en) | 1922-10-15 | 1919-11-26 | Process for continuous rapid drying or evaporation |
Country Status (1)
Country | Link |
---|---|
DE (2) | DE336612C (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE938307C (en) * | 1949-12-06 | 1956-01-26 | Metallgesellschaft Ag | Process for the production of powders from powdery solids on the one hand and liquid ones on the other |
NL6608867A (en) * | 1966-06-24 | 1967-12-27 |
-
1919
- 1919-11-26 DE DE1919336612D patent/DE336612C/en not_active Expired
-
1922
- 1922-10-15 DE DEW62289D patent/DE400923C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE336612C (en) | 1921-05-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE739417C (en) | Laundry detergents containing powdered per-compounds | |
DE2825039C3 (en) | Process for the production of urea granules | |
DE1542149A1 (en) | Process for the production of granular material | |
DE1592793B2 (en) | PROCESS FOR THE MANUFACTURING OF THINNING AGENT GRANULES | |
DE400923C (en) | Process for uninterrupted rapid crystallization and drying | |
DE2747802A1 (en) | METHOD FOR EVAPORATING AND SPRAYING DRYING A SACCHAROSE SOLUTION AND SYSTEM FOR EXERCISING THE METHOD | |
DE530499C (en) | Process for the production of solid urea or fertilizers containing urea | |
DE3118454C2 (en) | "Process for the production of urea granules" | |
DE287307C (en) | ||
DE381715C (en) | Process for the production of potassium ammonium nitrate | |
DE737554C (en) | Process for the production of uniformly grained mixed fertilizers containing ammonium nitrate | |
DE719869C (en) | Process for making a shelf stable, grained superphosphate | |
DE853443C (en) | Process for the continuous neutralization of sulphonic acids and sulfuric acid esters | |
DE859519C (en) | Process for the production of effervescent tablets with antineuralgic agents | |
DE574845C (en) | Process for the production of mixed fertilizers from sulphate salt minerals | |
DE930757C (en) | Process for the production of granular calcium-magnesium-phosphate fertilizers | |
DE638578C (en) | Process for the production of salts and mixed salts which contain ammonium and nitrate nitrogen side by side | |
DE641247C (en) | Process for the production of a fertilizer by digesting rock phosphate | |
CH151688A (en) | Process for the preparation of fertilizers that can be spread and stored. | |
DE583578C (en) | Process for the transfer of potash salts, in particular potassium chloride, into storable and easily spreadable form | |
DE530500C (en) | Process for the production of a fertilizer containing urea calcium nitrate | |
DE1097963B (en) | Process for the production of non-hygroscopic free-flowing, condensed glassy phosphates | |
DE567929C (en) | Process for the simultaneous production of sodium nitrate and mixed fertilizers | |
DE1154129B (en) | Process for the production of grained fertilizers in spherical form | |
AT140212B (en) | Process for the granulation of crystallizable salts. |